package com.northwind.servlets;

import com.northwind.beans.Categoria;
import com.northwind.dao.CategoriaDAO;
import com.northwind.dao.ProductoDAO;
import com.northwind.dto.ProductoDTO;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class ListaProductoServlet extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            CategoriaDAO categoriaDAO = new CategoriaDAO();
            ProductoDAO productoDAO = new ProductoDAO();
            String nombreProducto =
                    request.getParameter("producto") == null ? "" : request.getParameter("producto");
            Integer idCategoria = 
                    Integer.parseInt((request.getParameter("categoria") == null)
                    ? "-1" : request.getParameter("categoria"));
            ArrayList<ProductoDTO> listaProductos =
                    productoDAO.listarProductos(nombreProducto, idCategoria);
            ArrayList<Categoria> listaCategorias =
                    categoriaDAO.listarCategorias();
            request.setAttribute("listaProductos", listaProductos);
            request.setAttribute("listaCategoria", listaCategorias);
            RequestDispatcher rd =
                    getServletContext().getRequestDispatcher("/listadoproductos.jsp");
            rd.forward(request, response);
        } catch (SQLException ex) {
            ex.printStackTrace();
        }
    }

// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
